81152140

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{709}}^1$

素因数の和:874

約数の個数: 48

約数和(自身を含む): 175341600

約数和(自身を除く): 94189460

約数列:

[1, 2, 4, 5, 10, 20, 59, 97, 118, 194, 236, 295, 388, 485, 590, 709, 970, 1180, 1418, 1940, 2836, 3545, 5723, 7090, 11446, 14180, 22892, 28615, 41831, 57230, 68773, 83662, 114460, 137546, 167324, 209155, 275092, 343865, 418310, 687730, 836620, 1375460, 4057607, 8115214, 16230428, 20288035, 40576070, 81152140]

約数ペア:

[(1, 81152140), (2, 40576070), (4, 20288035), (5, 16230428), (10, 8115214), (20, 4057607), (59, 1375460), (97, 836620), (118, 687730), (194, 418310), (236, 343865), (295, 275092), (388, 209155), (485, 167324), (590, 137546), (709, 114460), (970, 83662), (1180, 68773), (1418, 57230), (1940, 41831), (2836, 28615), (3545, 22892), (5723, 14180), (7090, 11446)]